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m e 9 h S hp m e h S 2 K R A L 0 H G (No Model.)

MACHINE FOR MOLDING THE UPPERS 0F BOOTS AND SHOES.

' Sept. 2, 1884.

vi v

- (No Model.) 2 Sheets-Sheet 2.

v G. H. CLARK.

MACHINE FOR MOLDING THE UPPERS OP BOOTS AND SHOES.

No. 304,502. Patented Sept. 2, 1884.

Unirnn STATES PATENT Orrin-E.

GEORGE H. CLARK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO CHARLES ALBERTSHAW", OF SAME PLACE.

MACHINE FOR MOLDING THE UPPERS OF BOOTS AND SHOES.

SPECIFICATION forming part of Letters Patent No. 304,502, datedSeptember 2, 1884.

I Application filed July 16, 1884. No model 1'0 all whom/if flea/yconcern:

Be it known that I, GEORGE H. CLARK, of Boston, in the county ofSuffolk, State of Massachusetts, have invented a certain new and 5useful Improvement in Machines for Molding the Uppers of Boots andShoes. of which the following is a description suflieiently'full,clear,and exact to enable any person skilled in the art or science to whichsaid invention apper- 1O tains to make and use the same, reference beinghad to the accompanying drawings, forming a part of this specification,in which- Figure 1 is an isoinetrical perspective view of my improvedmolding-machine; Fig. 27a 1 side elevation of the former or male diedetached; Fig. 3, a rear elevation of the same; Fig. 4, a top plan view;Fig. 5, a plan view in section taken on linear of Fig. 1; Fig. 6, a planView of the male die or former and one of the standards, a portion ofthe standard being represented as removed to show the slide and screw;and Fig. 7 ,a transverse section showing the slide in which the male dieis mounted.

Like letters of reference indicate correspondiug parts in the differentfigures of the drawiugs.

My invention is designed as an improvement on the mold shown anddescribed in Letters Patent of the United States No. 293,631,

dated February 19, 1884; and it consists in a novel construction andarrangement of the parts, as hereinafter more fully set forth andclaimed, by which in some respects a more effective device of thischaracter is produced than is now in ordinary use. In said patented moldthe jaws of the clamp are opened and closed by means of a screw andhandwheel, rendering the operation much slower than is desirable, and noprovision is made for different sizes of uppers, or for a Variation inthickness at different points in the upper. My present improvement isintended to obviate these objections, and to that end I make use ofmeans which will be readily understood 5 by all conversant with suchmatters from the following explanation:

In the drawings, A represents the stand or bench on which the machine ismounted; B,

the bed-piece or body of the machine, and O D the uprights or standards.Journaled hori- 5c zontally in the lower part of the standards there isa rocker-shaft, E, provided at one of its ends with the handle or'leverF, and near its center, between the standards, with the adjustablecanrcollet, G, which is secured to said shaft by the screwbolt d. Ahub(not shown) projects horizontally from the outer face of the standard D,through which the shaft E passes, and secured to this hub by thescrewbolt in there is an adjustable cam-collet, H, adapted to engage anadjustable cam-collet, J, which is secured to the outer end of saidshaft by the screw-bolt r. The upper end of the standard D is bifurcatedor provided with two horizontally-arranged inwardly-projectiugarms,K'K,which carry at theirinner ends a pendent U-shaped jaw, L,rendered detachable by the screws f. A horizontal hole, M, is formed inthe upper portion of the standard D midway between the arms K K, andfitted to work therein is a slide, N, which is splined or feathered, asshown at Z, to prevent it from turning axially. Securedto the outer endof this slide by the screw 0, there is a male die or former, P, which isnearly U- 7 shaped both in area and crosssection, but is rounded at thepoint and oval on its under side, as shown in Figs. 1, 2, 3. A shaft, Q,provided with the hand-wheel R, is mounted horizontally in the standardD, the inner end 8 of said shaft being screw-threaded and work ing in acorrespondingly-threaded hole, tin the slide I. The standard 0 isbifurcated or provided with two horizontally-arrangedin wardlyprojectingarms, T T, corresponding with the arms K K on the standard D.

Pivoted at-V to-the standard 0 there is a bifurcated ortwo-armed plate,W, carrying at the inner ends of its arms a pendent U-shaped jaw, Z,corresponding with the jaw L on the 9c arms K. The standard 0 is fittedto move 1ongitudinally of the machine on the slide Y, but is preventedfrom moving longitudinally on the shaft E by the pin t, which passesthrough said shaft where it enters said standard, and 5 by the nut wonthe end of said shaft. A treadle, I, is pivoted at g in the lower partof l the stand A, said treadle being provided with from the inner faceof the standard D near the shaft E, said stud being adapted to engagethe cam on the collect G, when the shaft is rocked or partially rotatedtoward the front, and thereby move the standard 0 outwardly on the slideY.

The machine is designed for stretching or molding the shank portion ofthe upper, and in its use the shaft Q is turned back by the wheel Runtil the former P is between the arms K K, after which the handle F isdepressed to partially rotate the shaft E toward the front, bringing thecam-face on the collet G against the stud h, thereby pushing thestandard Goutwardly on the slide Y and opening the jaws Z L. The upperSis then placed in the machine, with its top down, and the shank portionwhich is to be molded laid across the opening in the jaw Z, as shown inFig. 1, after which the treadleI is depressed, causing the shaft E torotate toward the rear, and bringing the cam-face of the collet Jagainst the cam-face of the collet H, thereby drawing the standard 0inwardly on the slide Y and cansing the jaws Z L to firmly grasp oneside of the upper. The shaft Q is then turned in by the wheel It,bringing the die or former P into contact with the shank portion of theupper and forcing it into the space in the jaw Z, which acts as a femaledie, thereby permanently molding or stretching it at that point in amanner which will be readily obvious without a more explicitdescription. The pl ate WV, being pivoted at V, enables the jaw Z toswing laterally, and thereby adjust itself to the scams or anyinequalities in the upper. The jaws L Z, being detachable, may also besubstituted by larger or smaller jaws, as required, or in accordancewith the size of the upper or work being done.

Having thus explained my invention, what I claim is its shank or betweensaid jaws, and operative mechanism for the movable die, substantially asdescribed.

2. In a mold for molding or stretching the upper of boots and shoes, thefollowing instrumentalities, to wit: a fixed jaw adapted to grasp andclamp the upper around its shank portion, one of said jaws being alsoadapted to be adjusted to the inequalities of the work by the closing ofthe jaws onto the same, in combination with a movable die adapted tomold or stretch the unclamped portion of the upper at its shank orbetween said jaws, operative mechanism for the movable die, arocker-shaft provided with cams adapted to open and close said jaws, andmeans for operating said rocker-shaft, substantially as set forth.

3. In a mold for molding or stretching the uppers of boots or shoes, thepivoted jaw Z, in combination with the fixed jaw L, movable die 1?,means for operating said die, and means for opening and closing saidjaws, substantially as described.

4. In a mold for molding or stretching the uppers of boots or shoes, theshaft E and camcollets G H J, in combination with the fixed standard D,sliding standard C, stud h, and mechanism for producing rockingmovements of said shaft to open and close the jaws of the mold,substantially as set forth.

5. In a mold for molding or stretching the uppers of boots or shoes, theshaft E, mounted in the standards 0 D, and provided with the pin 5, nut10, cam'collets G J, and handle F, in combination with the cam-collet H,pin h, chain a, treadle I, and rod I), or means for connecting the chainand treadle, substantially as described. I

6. The improved mold for molding or stretching the uppers of boots orshoes herein described, the same consisting of the bed B, provided withthe slide Y, standard D, provided with the fixed jaw L, pin h, standardO,

provided with the pivoted jaw Z, slide N, carrying the die P, andprovided with the screw Q and wheel 1%, shaft E, provided with the pin6, nut 10, cam-collets G J, and handle F,

the treadle I, rod 1), chain a, and cam-collet H, constructed, combined,and arranged to operate substantially as set forth.

GEORGE H. CLARK.

Witnesses:

H. 1*]. REMIOK, L. J. \Vnirn.

